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ELIABILITY: Reli qualification is one of the qualities of a judge or any(prenominal) former(a) measurement instruments. assay reli efficacy means ability of the test to produce unvarying results when applied more than at one time to a grouping of students to a lower place comparable situations much(prenominal) as corresponding age, level of education, ethnical back ground and stinting status (Rossi,P.H et al 2004). To recognise whether the test is reliable or non, interpretation is done on a lower floor guided dependableness coefficiencies (see varlet 5) which argon obtained from the application of formulae such Spearman post roam and Spearman chocolate-brown foretelling (Thorndike,R.M et al 1991). WAYS OF determine RELIABILITY running monkey RELIABILITY According to Popham, W.J.(1995), test dependability can be unflinching by:- Test- retest method. This method involves administering a test twice to the equivalent group of students at ii different points in time. The results obtained be fit by utilize Spearman Rank parliamentary procedure and Spearman brown Prophecy formulae ( utilise in this question). self-directed judges method. In this method, cardinal t from each oneers separately mark the test scripts and spend a penny it without showing each other until the task is finished. Then the make headway from the two teachers ar tally using Spearman Rank Order and Spearman Brown Prophecy formulae. like forms method.

The teacher constructs two tests on the same fill area, interrogation the same skill, with the same consequence of items and the tests are administered to the same group of students on the same twenty-four hour period and the scores obtained are correlated to find the coefficient of reliability by using Spearman Rank Order and Spearman Brown Prophecy. Other formulae or methods that can be used to calculate the test reliability from which the interpretation on whether the test was reliable or not are Kuder Richardsons 20 and 21 (K R20 and K R21) (TIE 2007). CALCULATING RELIABILITY OF THE leaven AS PER data AND FORMULAE GIVEN A sample of eight (8) students was time-tested and re- tested in...If you wish to shake up a full essay, monastic order it on our website: Orderessay

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